The NXV BIR500 Isolator is the perfect solution when adding a secondary battery to your audio system. It allows the second battery to be fully dedicated to the sound system and does not create a voltage drop like common isolators tend to do. The isloator will draw less than 1 amp when your vehicle is powered on. All of this will ensure that your battery will be isolated with confidence!
Battery Isolator Relay Wiring Diagram. For more details check out the Wiring Diagram tab on this page